Cigarette machinery



Oct 15, 1929. w, Mo s 1,731,723

CIGARETTE ACHINERY Filed June 13, 1927 2 Sheets-Sheet 1 I lNVE/VTOR Oct.15, 1929.

W. E. MOLINS CIGARETTE MACHINERY 2 Sheets-Shah 2 Filed June 15, 1927 vmm //7 INVENTOE 2/ Mn); W 91444,.

Patented Oct. 15, 1929 UNITED STATES,

WALTER r vERE'rri/roLms, or 'nnrrronn, LONDON, ENGLAND CIGARETTEMACHINERY Application filed Tune 13, 192-7, Serial No. 198,634, and inGreat Britain February 11, 1927.

- This invention is for improvements in or relating to cigarettemachinery and more particularly to a device for'severing an axiallymoving rod into lengths of the type wherein i the cutting blade isarranged to sweep, by an arcual movement, across the path of the rod andsimultaneously travel with the rod at the axial speed thereof.

' The present invention consists ofa device for severing an axiallymoving rod into lengths of the type referred to, wherein means dependentupon the arcual movement of the blade is operable to ensure that thecutting edge of the blade sweeps through an arcual path of a constantradius in its movement across the path of the moving rod.

Further, the present invention consists of a device for severing-anaxially moving rod into lengths of the type referred to wherein meansdependent upon the rotational movement of the blade is operableautomatically to feed forward the blade so as to always maintain thecutting edge of the same at a predetermined radius from the rotationalaxis of the blade. I I

The invention is more particularly described with reference to theaccompanying drawings, in which I Fig. 1 is a view of one pair of knifecarrying links constructed, arranged and adapted to operate in themanner described in specification No. 248,415, with the subject matterof the present application'applied thereto. 4

Fig. 2 is a part plan view of the device illustrated in Fig. 1. 1 v.

Fig. 3 is a sectional end view on the line a-Z) of the deviceillustrated in Fig. 2.

, Fig. 4: is a plan view of the stop wheel illustrated in Fig. 1 and IFig. 5 is an enlarged section on the line ccl of the stop wheelillustrated Fig. 1. Referring to the drawings, the invention shown isappliedto a cutting device adapted to sever an axially moving rodintolengths wherein the cutting blade is'arra'nged periodically tointersect the path of the cigarette rod and simultaneously move withthe'rod during the period of intersection. A detachable segmental cuttingblade 1 mounted upon rotatable parallel link mechanism 2 is according tothe present invention clamped to the link 3 which is arranged parallelto the axis of the axially fixed rotatable shaft 4, in such a manner asto permit the same to move radially under the centrifugal force exertedupon the blade during the rotation of the said mechanism. I

The clamping device which holds the blade in position upon the saidlink, comprises a plate 5 preferably made of aluminium 7 through which abolt'6 is arrangedto extend. The bolt 6 is adapted to receive a sleeve 7which is provided with an enlarged head 8 which is adapted to sit in acountersunk por tion of the plate 5 and lie flush with the upper surfacethereof. A Arranged to fit over the sleeve 7 is a plate 9 preferablyformed of-steel against which the bifurcated knife 1 is arranged tobear. Arranged to rest on the top of the knife is a second steel plate10 and the two plates and blade are held in position by an upperaluminium plate 11 which is provided with overlapping edges 12 adaptedto hold the plates 9 and 10 and the knife'l in position. Arranged toextend over the bolt 6 so as to rest upon the upper faceof the sleeve 7is a spider shape spring 13 provided with three adjusting screws 14 andthe plate is clamped upon the upper surface. of the sleeve.7 by means ofa nut 15. A

When the plate is fixed inposition, the adjusting screws 14 are clampeddown upon the plate 11 until the blade 1 is held within the holder insuch a manner as to permit the same'ito be fed in a radial direction byan extremely small amount (for example one thousandth of an inch in eachten revolutions). as the parallel link mechanism 2 rotates about theshaft 4:. The blade 1 in this manner is continuously fed forward in aradialdirec tion, and in order to prevent the same. from being fed toofar beyond. the rotary path of the parallel link mechanism,

the blade is arranged to engage with a grooved stop wheel 16.which iscarried upon a spindle 17 and the beveleld faces 18 of the wheel arearranged toterminatein a slot 19 which is arranged to receive thecutting edge of the blade and permit the bevelled edge of cuttingmechanism being stopped so as to adjust the position of the blade fromtime to time. r

, It will be appreciated that the device which forms the subject matterof the present invention may be readily applied to any type of cuttingmechanism wherein the cut ting blade is subjected. to centrifugalaction, whether the path of the cutting blade be a complete circle or anarcual displacement, or whether the blade is fixed upon a rotatableholder or is adapted to revolve relatively thereto. Various alterationsin the constructional details of the device may be made within thespirit and scope of the invention as defined in the accompanying claims.

What Iclaim as my invention and desire to secure Letters Patent is 1. Ina device of the class described hava rotatable support, the combinationwitha cutting element mounted on said support, of retaining means onsaid support frictionally engaging said cutting element whereby saidelement is automatically movable with relation to said support bycentrifugal action. 2. In a device of the class described hav- 7 ing arotatable support, the combination with cutting means mounted thereonfor move: ment outwardly from the axis of said support, of a device inengagement with said cutting means for retardingoutwardly movementthereof, whereby said cutting means is gradually fed outwardly by theaction of centrifugal force. 7

I 3. In a device of the class described having a rotatable element, thecombination with cutting means mounted'thereon for movement outwardlyfrom the axis of said element, of a device in engagement with saidcutting means for retarding outward movement thereof, whereby saidcutting means is gradually fed outwardly by the action of centrifugalforce, and a member foriengagement with said cutting means to positivelylimit outward movement thereof.

4. In a'device of the class described having a rotatable element, thecombination with cutting means mounted thereon for movement outwardlyfrom the axis of said ele ment, of a device in engagement with saidcutting means for retarding outward movement thereof, whereby saidcuttmg means 1s a member for engagement with said cutting edge to limitthe outward movement of said means. r

6. In a device for severing an axially movingrod into lengths having acutting blade holder which is movable transversely of the path of therod and is operable to travel with the rod during such transversemovement, the combination with a cutting blade carried by said holder,means for yieldingly retaining said blade against forward feedingmovement with respect to said holder, and

means for restricting the amoimt of forward feeding movement of theblade.

7 In a device for severing an axially moving rod into lengths having acuttlng blade,

holder which is movable transversely of the.

path of the rod and is operable to travel with the rod during suchtransverse movement, the combination with a cutting blade carried bysaid holder, means for yieldingly retainin said blade against forwardfeeding o ment during rotation of said holder, and means for restrictingthe amount of forward feedingmovement ofthe blade.

-8. In a device for severing an axially moving rod into lengths having acutting blade holder which is movable transversely of the path of therod and is operable to, travel with the rod during such transversemovement, the combination with a cutting. blade carried by said holder,means for. yieldingly retaining said blade against forward feedingmovement during rotation of said holder, and means arranged in the pathof movement of the blade formaintaining the cutting edge thereof at aconstant distance from the rotational a of e holder.

9. In a device for severing an axially moving rod into lengths having acutting blade holderwhich is movable transversely ofthe path of the rodand is operable to. travel with the rod during such transverse movement,the combination with a cutting blade carried by said holder, a springcontrolled element for retarding radial movement of said blade duringrotational movement of the. holder, and a stop mounted in the path ofthe blade for limiting radial movement thereof.

In testimony whereof I hereunto affix my signature.

WALTER EVERETT nouns,

gradually fed outwardly by the action of

